procedure: Record the standing height by standing below the apparatus with both feet flat on the ground, and stretching up one arm and reaching as high as possible. The subject then places one foot back, rocking is allowed, before bringing the back foot back next to the other, and leaping
vertically off both legs as high as possible (the technique is similar to the jump to start a basketball game). The arms may be used to assist in projecting the body upwards. Attempt to time the swing of the arm to mark at the
highest point of the jump. The difference in distance between
the standing reach height and the jump height reached is the score. The best of
three attempts is recorded.

technique plays a part in maximizing your score, as the subject must time the jump so that the marker is reached at the peak of the jump, and the jump height can be affected by the effective use of the arms.

the vertec equipment is expensive, especially relative to the chalk and wall vertical jump method.

athletes may 'cheat' by not reaching up fully when measuring the standing height, thus inflating their jump score.